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5.1.1. Quality assessment
Westenberger et al. [33] compared quality assessment of
pharmaceutical products purchased via the Internet using a
variety of traditional (HPLC-based) and non-traditional
(NIRS, NIR-CI) techniques. A staring imager Chemical
Imaging system was utilised to obtain Chemical Images
of individual specimens at 121 wavelengths between 1050
and 1700 nm. The NIR-CI technique had an added advantage
over traditional techniques in its ability to detect suspect
manufacturing issues, such as blending and density pattern distribution of components within a drug product,
allowing direct qualitative comparison with control products.
It was also noted that the NIRS and NIR-CI techniques
are non-destructive so that defective samples could
be scanned and saved for further testing.
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